I'm mostly ranting.

New MUL is shiny.
But sucks for actually looking up units.

For example, I want all the units that have ART-LT.  I do not care about era. I do not care about faction.  All I want is the list of units that have the stats I'm looking for.

And all that needs to be done is to add an "All" button to the era button.  Thats it. Once the era is selected all the other options that actually matter open up.